nonlinear dynamics, chaos, return maps, exponents

Fellow Igorinians,

I have a definite need to assess a recent data set of approximately 3000 data points that appear to display a type of spatial chaotic (or nearly chaotic behavior). I do have some canned software for evaluation purposes (Sprott's Chaos Analyzer) but I was hoping to find some existing code that was a little more robust and had quality plotting capabilities. I admit that, although I have used IGOR for the past 10 years, I have spent little time developing code to implement other than an occasional curve fit. I would like to be able to plot an x(n)-x(n+1) return map, assess the various exponents/dimensions (Lyapunov, fractal, Hausdorff) and ultimately develop a phase-space plot of the attractor if it exists. I know I'm asking for the world here, but can anyone help with any or all?
Any assistance would be greatly appreciated.
Respectfully,
Dr. Mike Boteler